Explorer Robert Ballard, who discovered the wreck of the R.M.S. Titanic in 1985, is partnering with scientists from The University of Texas at Austin and other institutions to webcast a live scientific expedition to the eastern Mediterranean Nov. 10-18. People around the world will be able to view live video feeds and submit questions 24 hours a day, seven days a week as the scientists use remotely operated vehicles to map the seafloor, study underwater volcanoes, investigate unusual life forms, explore shipwrecks and more.